/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.sqlparser.wall;


import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;

public class WallFunctionStat {

  final static AtomicLongFieldUpdater<WallFunctionStat> invokeCountUpdater = AtomicLongFieldUpdater
      .newUpdater(WallFunctionStat.class,
          "invokeCount");
  private volatile long invokeCount;

  public long getInvokeCount() {
    return invokeCount;
  }

  public void incrementInvokeCount() {
    invokeCountUpdater.incrementAndGet(this);
  }

  public void addSqlFunctionStat(WallSqlFunctionStat sqlFunctionStat) {
    this.invokeCount += sqlFunctionStat.getInvokeCount();
  }

  public String toString() {
    return "{\"invokeCount\":" + invokeCount + "}";
  }

  public Map<String, Object> toMap() {
    Map<String, Object> map = new HashMap<String, Object>();
    map.put("invokeCount", invokeCount);
    return map;
  }
}
